384725389 has 2 divisors, whose sum is σ = 384725390. Its totient is φ = 384725388.

The previous prime is 384725333. The next prime is 384725399. The reversal of 384725389 is 983527483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377991364 + 6734025 = 19442^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 384725389 - 2⁹ = 384724877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384725309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192362694 + 192362695.

It is an arithmetic number, because the mean of its divisors is an integer number (192362695).

Almost surely, 2^384725389 is an apocalyptic number.

It is an amenable number.

384725389 is a deficient number, since it is larger than the sum of its proper divisors (1).

384725389 is an equidigital number, since it uses as much as digits as its factorization.

384725389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 49.

The square root of 384725389 is about 19614.4178858308. The cubic root of 384725389 is about 727.3056295527.

The spelling of 384725389 in words is "three hundred eighty-four million, seven hundred twenty-five thousand, three hundred eighty-nine".